Product Overview

This high-performance crankshaft pulley is engineered as a direct replacement for Komatsu PC200-7 excavators. As a global supplier to the heavy machinery industry, we ensure this critical engine component meets the rigorous demands of construction, mining, and industrial applications worldwide. We specialize in serving major markets across North America, Europe, the Middle East, and Asia-Pacific with reliable parts and streamlined logistics.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications for a perfect fit and seamless integration with the Komatsu engine assembly.
• Superior Durability: Constructed from high-grade materials to withstand extreme torsional forces, vibration, and thermal cycling for extended service life.
• Optimal Vibration Damping: Designed to effectively dampen crankshaft harmonics, protecting critical engine components like bearings and the timing system from premature wear.
• Maintains Engine Balance: Ensures smooth engine operation, contributing to overall performance, fuel efficiency, and reduced operational noise.
• Cost-Effective Solution: Provides OEM-level quality and performance at a competitive price, offering excellent value for fleet managers and equipment owners.

Technical Specifications

OEM Cross-Reference

This part is a direct replacement for the following Komatsu OEM numbers:

• 6735-31-8120 (Primary Reference)
• 6732-31-8120 (Alternative / Supersession Reference)

Compatibility

This crankshaft pulley is specifically designed for the engine in the following equipment:

• Machine Model: Komatsu PC200-7 Hydraulic Excavator
• Engine Application: Komatsu SAA6D107E-1 engine and compatible variants powering the PC200-7.

Global Supply & Distribution

We are a trusted B2B partner for engine components with a robust international supply chain. Our capabilities include:

• Worldwide Shipping: Reliable export to all major continents and industrial regions.
• Strategic Logistics: Fast container and air freight services to key ports in North America (Rotterdam, Hamburg), Asia (Singapore, Shanghai), and the Middle East (Jebel Ali, Dammam).
• Market Expertise: Deep experience supplying to distributors, workshops, and large-scale operations in Europe, Africa, Southeast Asia, and South America.
• Trade Compliance: All shipments are prepared with accurate HS codes, certificates of origin, and full commercial documentation for smooth customs clearance.

Quality Assurance

Every crankshaft pulley undergoes stringent quality control to ensure reliability in the field.

• Manufacturing Standards: Produced in ISO-certified facilities using advanced CNC machining and balancing equipment.
• Rigorous Testing: Each unit is dynamically balanced to precise tolerances to eliminate vibration and ensure smooth operation.
• Material Certification: Raw materials are sourced from certified suppliers, guaranteeing consistent strength and durability.
• Warranty: Backed by a standard warranty against manufacturing defects, providing peace of mind for our B2B clients.

FAQ

Q: Is this a direct bolt-on replacement for my Komatsu PC200-7 excavator?
A: Yes. This crankshaft pulley is manufactured to the exact OEM specifications of part numbers 6735-31-8120 and 6732-31-8120, ensuring a perfect fit without modification.

Q: What is the primary function of the crankshaft pulley?
A> It serves two critical functions: 1) It drives engine accessories (like the alternator and fan) via the serpentine belt, and 2) It acts as a vibration damper, absorbing harmful torsional vibrations from the crankshaft to protect the engine.

Q: What are the signs that my crankshaft pulley needs replacement?
A: Common indicators include visible wear or damage to the pulley grooves, excessive engine vibration, misalignment of accessory belts, unusual noises from the front of the engine, or separation of the rubber damping ring. Regular inspection during maintenance is recommended.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .